Terminal for solenoid valve coil assembly and solenoid valve coil assembly

Abstract

The utility model discloses a terminal for solenoid valve coil assembly and solenoid valve coil assembly, the terminal for solenoid valve coil assembly is used for connecting to the lead of coil, including: main part and be provided the wire clamping part of main part, the wire clamping part is provided with the convex rib and the groove that are arranged opposite to each other, the convex rib and the groove enclose to form the wire clamping groove that is used for clamping the lead. According to the terminal, the protruding rib and the groove which are opposite to each other are arranged on the wire clamping part, the protruding rib and the groove are matched with each other and define the wire clamping groove used for clamping the lead wire, the lead wire can be clamped more easily through the wire clamping groove, the bending and deformation degree of the wire clamping part can be reduced, breakage caused by excessive deformation of the wire clamping part can be avoided, and the service life of the terminal is prolonged. And the lead can enter the groove more easily, that is, the groove has a restraining effect on the lead, the position of the lead can be restrained, the position of the lead is prevented from deviating, meanwhile, extrusion force borne by the lead can be reduced, the lead can be prevented from being pinched off, and then the yield and quality of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a terminal for an electromagnetic valve coil assembly and an electromagnetic valve coil assembly. Background Art

[0002] The solenoid valve coil assembly includes a coil and a terminal, the lead of the coil is connected to the terminal, and the terminal is inserted into a conductive through hole of a circuit board, for example, so that the coil is connected to the circuit board through the terminal. In the prior art, the terminal includes a main body and a clamping part, the clamping part is bent and extended from one side of the main body, and a clamping groove for clamping the lead of the coil is formed between the clamping part and the main body. After the lead of the coil is clamped in the clamping groove, the lead of the coil is welded to the terminal by laser welding or the like. However, when the terminal is connected to the lead of the coil, that is, after the lead of the coil is pressed into the clamping groove, when the lead and the terminal are welded by laser welding or the like, the clamping part will be squeezed and deformed in the direction of the main body to compress the lead of the coil, and the clamping part is prone to excessive squeezing and deformation or even fracture. Moreover, after the lead of the coil is pressed into the clamping groove, the lead of the coil is also easily displaced or even clamped off, which will affect the yield of the product.

[0003] Therefore, existing terminals need to be improved. Summary of the invention

[0004] The purpose of the utility model is to provide a terminal for a solenoid valve coil assembly and a solenoid valve coil assembly, which can not only prevent the wire clamping part from being excessively deformed and caused to break, but also constrain the position of the lead wire to avoid the position of the lead wire from being offset, and also prevent the lead wire from being clamped off, thereby improving the yield and quality of the product.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A terminal for a solenoid valve coil assembly, used to connect to a lead wire of a coil, comprises: a main body and a wire clamping portion arranged on the main body, the wire clamping portion having a convex rib and a groove arranged oppositely, the convex rib and the groove surround a wire clamping groove for clamping the lead wire.

[0007] Preferably, the wire clamping portion comprises a fixing piece and a crimping piece, the fixing piece is arranged on the main body portion or extends from the main body portion, and the crimping piece is bent and extended from the fixing piece in an integral manner;

[0008] The convex rib is arranged on the fixing sheet, and the groove is arranged on the crimping sheet; or,

[0009] The convex rib is arranged on the crimping sheet, and the groove is arranged on the fixing sheet.

[0010] Preferably, the wire clamping portion also includes a bending section, two ends of which are respectively connected to the fixing plate and the crimping plate, the groove extends to the bending section or is arranged close to the bending section, and the convex rib correspondingly extends to the bending section or is arranged close to the bending section, so that the convex rib and the groove are arranged to form the wire clamping groove for clamping the lead wire.

[0011] Preferably, when the groove is provided on the crimping sheet, in the insertion direction of the main body into a conductive through hole, the crimping sheet has a first side and a second side opposite to each other, and the groove passes through the first side of the crimping sheet and the second side of the crimping sheet; or,

[0012] When the groove is provided on the fixing plate, in the insertion direction of the main body into a conductive through hole, the fixing plate has a third side and a fourth side opposite to each other, and the groove passes through the third side and the fourth side of the fixing plate.

[0013] Preferably, in a direction perpendicular to the insertion direction of the main body into a conductive through hole, the width of the groove is greater than or equal to the diameter of the lead; and / or,

[0014] The depth of the groove is less than or equal to the diameter of the lead wire.

[0015] Preferably, after the lead wire is clamped in the wire clamping groove, the convex rib at least abuts against the outer edge of the groove, or the convex rib abuts against the surface of the fixing plate or the crimping plate where the groove is located.

[0016] Preferably, in a direction perpendicular to the insertion direction of the main body into a conductive through hole, the maximum width of the rib is greater than the maximum width of the groove, so that the rib is away from the bottom of the groove toward one end of the groove; and / or,

[0017] In a direction perpendicular to the insertion direction of the main body into a conductive through hole, the width of the convex rib gradually decreases from an end away from the groove to an end close to the groove.

[0018] Preferably, at least the outer edge of one end of the rib facing the groove is provided with a first chamfer; and / or,

[0019] At least a second chamfer is provided at an outer edge of the groove on a side facing the rib.

[0020] Preferably, when the convex rib is provided on the fixing plate, the thickness of the fixing plate corresponding to the convex rib is the same as the thickness of the fixing plate at other positions; or,

[0021] When the convex rib is provided on the crimping piece, the thickness of the crimping piece corresponding to the convex rib is the same as the thickness of the remaining positions of the crimping piece.

[0022] A solenoid valve coil assembly comprises a terminal for a solenoid valve coil assembly as described in any one of the above and a coil, wherein the lead wire of the coil is clamped in the wire clamping groove, and the lead wire is fixedly connected to the wire clamping portion by welding.

[0023] Preferably, before the lead wire passes through the wire clamping portion, part of the lead wire is wound around the main body; and / or,

[0024] After the lead wire passes through the wire clamping portion, part of the lead wire is wound around the main body.

[0025] Preferably, the lead wire is an enameled wire, and the lead wire comprises an internal conductor and an insulating layer covering the outer periphery of the conductor.

[0026] Compared with the prior art, the beneficial effects of the present invention include at least:

[0027] The terminal for the solenoid valve coil assembly and the solenoid valve coil assembly of the utility model are provided with relative convex ribs and grooves on the wire clamping part. The convex ribs and the grooves cooperate with each other and surround to form a wire clamping groove for clamping the lead wire. The wire clamping groove can clamp the lead wire more easily. The convex ribs can reduce the degree of bending and deformation of the wire clamping part, which can not only avoid excessive deformation of the wire clamping part and cause breakage, but also make it easier for the lead wire to enter the groove, that is, the groove has a restraining effect on the lead wire, which can restrain the position of the lead wire and avoid the position of the lead wire from being offset. At the same time, it can also reduce the extrusion force on the lead wire and prevent the lead wire from being clamped off, thereby improving the yield and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded schematic diagram of the solenoid valve coil assembly of the embodiment of the utility model.

[0029] Figure 2 yes Figure 1 A local enlarged schematic diagram of point A in the middle.

[0030] Figure 3 It is a three-dimensional structural schematic diagram of the solenoid valve coil assembly of the embodiment of the utility model.

[0031] Figure 4 It is a schematic diagram of the planar structure of the solenoid valve coil assembly of the embodiment of the utility model when no housing is provided.

[0032] Figure 5 yes Figure 4 A schematic cross-sectional view along the AA direction.

[0033] Figure 6 yes Figure 5 A local enlarged schematic diagram of point B in the middle.

[0034] Figure 7 yes Figure 6 Schematic diagram of the clamping line part after extrusion deformation.

[0035] Figure 8 yes Figure 4 Another cross-sectional diagram along the AA direction.

[0036] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of point C in the middle.

[0037] Fig.10 yes Fig. 9 Schematic diagram of the clamping line part after extrusion deformation.

[0038] In the figure: 100, solenoid valve coil assembly; 1, terminal; 11, main body; 12, wire clamping part; 121, fixing plate; 122, crimping plate; 1221, first side; 1222, second side; 123, bending section; 124, convex rib; 1241, first chamfer; 125, groove; 1251, second chamfer; 126, wire clamping groove; 13, first end; 14, second end; 141, mounting foot; 2, coil; 21, lead wire; 3, support platform; 31, wiring groove; 4, clamping piece; 5, shell; 6, coil carrier; 7, outer cover. DETAILED DESCRIPTION

[0039] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0040] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0041] Reference Figures 1 to 10 The utility model provides a terminal 1 for a solenoid valve coil assembly, which is used to connect to a lead wire 21 of a coil 2, and includes: a main body 11 and a wire clamping portion 12 disposed on the main body 11, the wire clamping portion 12 and the main body 11 can be substantially perpendicular to each other, and the wire clamping portion 12 is preferably integrally formed with the main body 11. The number of the wire clamping portion 12 can be one or more, and in this embodiment, the number of the wire clamping portion 12 is one, that is, one wire clamping portion 12 is disposed on each main body 11.

[0042] Specifically, refer to Figure 1 , Figure 2 The main body 11 has a first end 13 and a second end 14 opposite to each other, that is, the terminal 1 has a first end 13 and a second end 14 opposite to each other, the wire clamping part 12 is arranged near the middle part or the first end 13 of the main body 11, and the second end 14 of the main body 11 is used as a free end. The second end 14 of the main body 11 can be inserted into a conductive through hole on a circuit board (not shown) to achieve electrical connection between the terminal 1 and the circuit board. The second end 14 of the main body 11 can be provided with a mounting foot 141, and the mounting foot 141 can be a needle-type structure or a fisheye-type structure. When the mounting foot 141 is a needle-type structure, the mounting foot 141 can be inserted into the through hole of the circuit board, and then the mounting foot 141 is fixed to the circuit board by welding to achieve electrical connection. When the mounting foot 141 is a fisheye-type structure, the mounting foot 141 can be pressed into the through hole of the circuit board, and there is a retaining force between the mounting foot 141 and the side wall of the through hole, and welding is not required, that is, the mounting foot 141 can be fixed to the circuit board and achieve electrical connection.

[0043] Reference Figure 2 , Figure 6 , Fig. 9 The wire clamping part 12 can be roughly U-shaped, and has convex ribs 124 and grooves 125 arranged opposite to each other on the wire clamping part 12. The convex ribs 124 and grooves 125 surround and form a wire clamping groove 126 for clamping the lead wire 21, that is, the convex ribs 124 and grooves 125 cooperate with each other to position and clamp the lead wire 21. When the lead wire 21 is clamped in the wire clamping groove 126, at least part of the lead wire 21 is located in the groove 125, and at least part of the convex ribs 124 are abutted against the lead wire 21 at one end facing the groove 125. The convex ribs 124 and grooves 125 jointly apply a clamping force to the lead wire 21 to ensure the stability of the position of the lead wire 21. There can be one or more convex ribs 124 and grooves 125 on each wire clamping part 12. In this embodiment, there is one convex rib 124 and groove 125 on each wire clamping part 12, that is, one wire clamping groove 126 can be formed on each wire clamping part 12. Each clamping groove 126 can clamp one or more lead wires 21. In this embodiment, each clamping groove 126 clamps one lead wire 21, which can ensure that the lead wire 21 is clamped more stably. The lead wire 21 can be an enameled wire, which includes an inner conductor and an insulating layer covering the outer periphery of the conductor.

[0044] The present application arranges relative ribs 124 and grooves 125 on the wire clamping portion 12, and the ribs 124 and the grooves 125 cooperate with each other and surround a wire clamping groove 126 for clamping the lead 21. The wire clamping groove 126 can clamp the lead 21 more easily, and can reduce the degree of bending and deformation of the wire clamping portion 12, which can not only prevent the wire clamping portion 12 from being excessively deformed and caused to break, but the ribs 124 also play a limiting and supporting role, and can also prevent the wire clamping portion 12 from being excessively squeezed and deformed. Moreover, the lead 21 is more likely to enter the groove 125, that is, the groove 125 has a restraining and limiting effect on the lead 21, which can restrain the position of the lead 21 and avoid the position of the lead 21 from being offset. At the same time, when the wire clamping portion 12 is squeezed and deformed, the groove 125 at least leaves space for accommodating the lead 21, and can also reduce the squeezing force on the lead 21, and can prevent the lead 21 from being clamped off, thereby improving the yield and quality of the product.

[0045] In a specific embodiment, referring to Figure 2 , Figure 6 , Fig. 9 The wire clamping portion 12 may include a fixing piece 121 and a crimping piece 122. The fixing piece 121 is arranged on the main body 11 or extends from the main body 11, that is, part of the fixing piece 121 may overlap with the main body 11, and part of the fixing piece 121 extends from the main body 11 and protrudes from the main body 11. The crimping piece 122 is bent and extended from the fixing piece 121, so that the fixing piece 121 and the crimping piece 122 are roughly U-shaped as a whole.

[0046] The convex rib 124 can be arranged on the fixing sheet 121, that is, the convex rib 124 is arranged on the side of the fixing sheet 121 facing the crimping sheet 122, the convex rib 124 can be arranged on the fixing sheet 121 overlapping with the main body 11, and the convex rib 124 can also be arranged on the fixing sheet 121 protruding from the main body 11, and the groove 125 is correspondingly arranged on the crimping sheet 122, that is, the groove 125 is arranged on the side of the crimping sheet 122 facing the fixing sheet 121. The convex rib 124 and the groove 125 are arranged opposite to each other, so that the convex rib 124 and the groove 125 can cooperate with each other to clamp the lead 21, and the end of the convex rib 124 facing the groove 125 can abut against the lead 21, and the end of the convex rib 124 facing the groove 125 can also partially abut against the side wall of the groove 125 or the outer edge of the groove 125, and the end of the convex rib 124 facing the groove 125 can also abut against the surface of the crimping sheet 122 on both sides of the groove 125.

[0047] Reference Figure 2 , Figure 6 , Fig. 9When the convex rib 124 is provided on the fixing sheet 121, the thickness of the fixing sheet 121 corresponding to the convex rib 124 is the same as the thickness of the other positions of the fixing sheet 121, so that the convex rib 124 can be formed on the fixing sheet 121 by stamping. The same here means that the thickness of the fixing sheet 121 corresponding to the convex rib 124 is within ±20% of the thickness of the other positions of the fixing sheet 121, not absolutely the same.

[0048] For the convenience of description, the insertion direction described below refers to the insertion direction of the main body 11 into a conductive through hole. Figure 2 When the groove 125 is provided on the crimping piece 122, in the insertion direction of the main body 11, the crimping piece 122 has a first side 1221 and a second side 1222 opposite to each other, and the groove 125 passes through the first side 1221 and the second side 1222 of the crimping piece 122, that is, the groove 125 extends from the first side 1221 of the crimping piece 122 to the second side 1222 of the crimping piece 122. That is, in the insertion direction of the main body 11, the groove 125 can span the entire crimping piece 122, that is, the width of the groove 125 in the insertion direction of the main body 11 is the same as the width of the crimping piece 122.

[0049] The convex rib 124 can also be arranged on the crimping sheet 122, that is, the convex rib 124 is arranged on the side of the crimping sheet 122 facing the fixing sheet 121, and the groove 125 is correspondingly arranged on the fixing sheet 121, that is, the groove 125 is arranged on the side of the fixing sheet 121 facing the crimping sheet 122. The groove 125 can be arranged on the fixing sheet 121 overlapping with the main body 11, and the groove 125 can also be arranged on the fixing sheet 121 protruding from the main body 11. The convex rib 124 and the groove 125 are arranged oppositely, so that the convex rib 124 and the groove 125 can cooperate with each other to clamp the lead 21, and the end of the convex rib 124 facing the groove 125 can abut against the lead 21, and the end of the convex rib 124 facing the groove 125 can also partially abut against the side wall of the groove 125 or the edge of the groove 125, and the end of the convex rib 124 facing the groove 125 can also abut against the surface of the fixing sheet 121 on both sides of the groove 125.

[0050] When the convex rib 124 is provided on the crimping piece 122, the thickness of the crimping piece 122 corresponding to the convex rib 124 is the same as the thickness of the remaining positions of the crimping piece 122, so that the convex rib 124 can be formed on the crimping piece 122 by stamping. The same here means that the thickness of the crimping piece 122 corresponding to the convex rib 124 is within ±20% of the thickness of the remaining positions of the crimping piece 122, not absolutely the same.

[0051] When the groove 125 is provided on the fixing sheet 121, the fixing sheet 121 has a third side (not shown) and a fourth side (not shown) opposite to each other in the insertion direction of the main body 11, and the groove 125 runs through the third side of the fixing sheet 121 and the fourth side of the fixing sheet 121, that is, the groove 125 extends from the third side of the fixing sheet 121 to the fourth side of the fixing sheet 121. In other words, in the insertion direction of the main body 11, the groove 125 can span the entire fixing sheet 121, that is, the width of the groove 125 in the insertion direction of the main body 11 is the same as the width of the fixing sheet 121.

[0052] The convex rib 124 can be roughly in the shape of a cuboid, and the concave groove 125 can also be roughly in the shape of a cuboid. The shape of the convex rib 124 and the shape of the concave groove 125 are preferably the same or similar. Of course, the convex rib 124 and the concave groove 125 can also adopt other shapes. The convex rib 124 and the concave groove 125 are preferably formed by stamping, which facilitates the formation of the convex rib 124 and the concave groove 125, reduces the production cost, and can also ensure the position and size accuracy of the convex rib 124 and the concave groove 125.

[0053] As a preferred method, refer to Fig. 9 The wire clamping portion 12 may further include a bending section 123, the two ends of which are respectively connected to the fixing piece 121 and the crimping piece 122, the groove 125 may extend to the bending section 123 or be arranged near the bending section 123, and the convex rib 124 may correspondingly extend to the bending section 123 or be arranged near the bending section 123, so that the convex rib 124 and the groove 125 are surrounded to form a wire clamping groove 126 for clamping the lead wire 21. In other words, the groove 125 may be completely arranged in the crimping piece 122 but near the bending section 123, or part of the groove 125 may extend to the bending section 123, and the convex rib 124 may correspondingly be arranged near the bending section 123 or partially extend to the bending section 123. The groove 125 extends to the bending section 123. On the one hand, the groove 125 can reduce the material thickness of the bending section 123, reduce the bending stress of the bending section 123, and make the bending section 123 easier to bend. On the other hand, the lead 21 is basically close to the bending section 123 before entering the clamping portion 12. Extending the groove 125 to the bending section 123 or setting it close to the bending section 123 makes it easier for the lead 21 to enter the groove 125.

[0054] In a specific embodiment, in the insertion direction perpendicular to the main body 11, the width of the groove 125 can be greater than or equal to the diameter of the lead 21, so that it is easier to guide the lead 21 into the groove 125, and the lead 21 can be abutted against the bottom of the groove 125, which not only ensures that the groove 125 can limit the lead 21, but also avoids the lead 21 protruding too much from the groove 125 and being crushed.

[0055] Reference Figure 6 , Fig. 9At least a first chamfer 1241 may be provided at the outer edge of one end of the rib 124 facing the groove 125 . The first chamfer 1241 is preferably an arc-shaped chamfer. The first chamfer 1241 can reduce damage to the lead 21 and prevent the lead 21 from being broken by the rib 124 .

[0056] A second chamfer 1251 may be provided at least on the outer edge of the groove 125 on the side facing the rib 124. The second chamfer 1251 is preferably an arc-shaped chamfer. The second chamfer 1251 may also reduce the damage of the edge of the groove 125 to the lead 21, prevent the lead 21 from being broken by the edge of the groove 125, and guide the lead 21 to enter the groove 125 more smoothly.

[0057] The depth of the groove 125 can be less than or equal to the diameter of the lead 21, so that part of the lead 21 can be protruded from the groove 125 or at least flush with the groove 125, so that the convex rib 124 can be in contact with the lead 21, that is, the convex rib 124 can apply abutting force to the lead 21, thereby ensuring that the clamping part 12 can stably clamp the lead 21. When welding the lead 21 and the clamping part 12, the clamping part 12 will be squeezed and deformed to a certain extent, and the lead 21 will also be squeezed and deformed to a certain extent by the convex rib 124 and the groove 125. It can also ensure that the lead 21 is in reliable contact with the surface of the convex rib 124 and the groove 125, so that when welding, the insulation layer outside the lead 21 is melted to expose the wire and better weld it with the clamping part 12. The welding method can be resistance welding, hot melt welding, laser welding, etc.

[0058] As a preferred embodiment, in the insertion direction perpendicular to the main body 11, the maximum width of the rib 124 is greater than the maximum width of the groove 125, so that the end of the rib 124 facing the groove 125 is away from the bottom of the groove 125. That is to say, when the fixing plate 121 and the crimping plate 122 are squeezed against each other, a certain distance can be maintained between the top of the rib 124 and the bottom of the groove 125, that is, when they are squeezed and deformed against each other, the rib 124 may not enter the groove 125. Of course, the rib 124 may also be partially located in the groove 125. On the one hand, it can prevent the lead 21 from being excessively squeezed and deformed and being pinched off, and on the other hand, it can prevent the crimping plate 122 from being excessively squeezed and deformed and broken. In some embodiments, in the insertion direction perpendicular to the main body 11, the width of the rib 124 may gradually decrease from the end away from the groove 125 to the end close to the groove 125. Refer to Figure 6 and Fig. 9 , which is a schematic diagram of the clamping portion 12 clamping the wire but not welding, that is, the clamping portion 12 is not yet squeezed and deformed, and the lead 21 is in contact with the surface of the rib 124 and the groove 125 of the clamping portion 12. Further, referring to Figure 7 , Fig.10In the insertion direction perpendicular to the main body 11, the width of the rib 124 at one end facing the groove 125 is greater than the width of the groove 125 at one side facing the rib 124, so that after the wire clamping part 12 is clamped, the wire clamping part 12 is squeezed and deformed to a certain extent during welding, and the crimping piece 122 is squeezed toward the direction of the fixing piece 121, and the lead 21 is squeezed and deformed until the rib 124 abuts against the outer edge of the groove 125 or the surface of the fixing piece 121 or the crimping piece 122 where the groove 125 is located, further preventing the crimping piece 122 from being squeezed and deformed toward the fixing piece 121, and preventing the wire clamping part 12 from being excessively deformed.

[0059] Reference Figure 1 , Figure 3 The utility model also provides a solenoid valve coil assembly 100, including the terminal 1 and the coil 2, the lead 21 of the coil 2 is clamped in the clamping groove 126, and the lead 21 is fixedly connected to the clamping portion 12 by welding, and the welding method can be resistance welding, hot melt welding, laser welding, etc. In this embodiment, the number of terminals 1 and the number of leads 21 of the coil 2 are preferably the same. For example, when the coil 2 has two leads 21, the number of terminals 1 is two, each terminal 1 is connected to one lead 21, and the coil 2 is electrically connected to the circuit board through the terminal 1.

[0060] As a preferred method, before the lead wire 21 passes through the clamping portion 12, part of the lead wire 21 can be wound around the main body 11, which is equivalent to pre-fixing the lead wire 21 and the main body 11, enhancing the stability of the connection between the lead wire 21 and the terminal 1, and also facilitating subsequent operations. After the lead wire 21 passes through the clamping portion 12, part of the lead wire 21 can also be wound around the main body 11, which is equivalent to pre-fixing the lead wire 21 and the main body 11 again, which also enhances the stability of the connection between the lead wire 21 and the terminal 1, and can prevent the lead wire 21 from falling off from the clamping groove 126 before welding the terminal 1.

[0061] Reference Figure 1 , Figure 3 The solenoid valve coil assembly 100 may further include a carrier platform 3, a clamping member 4 and a shell 5. The terminal 1 is arranged on the carrier platform 3 by being integrally embedded or assembled. The clamping member 4 may be arranged on the carrier platform 3. The clamping member 4 may also be arranged on the terminal 1. The clamping member 4 is clamped and matched with the shell 5.

[0062] Specifically, the carrier 3 has a supporting function for the terminal 1. The material of the carrier 3 is preferably plastic material, but it can also be other insulating materials. At least one wiring groove 31 can be provided on the carrier 3. The wiring groove 31 extends along the insertion direction and is used for the lead wire 21 of the coil 2 to pass through. The wiring groove 31 can position or fix the lead wire 21 of the coil 2 to prevent the lead wire 21 of the coil 2 from shaking. The wiring groove 31 can be provided on the side wall of the carrier 3, and the number of the wiring grooves 31 corresponds to the number of the lead wires 21 of the coil 2. When there are multiple wiring grooves 31, the multiple wiring grooves 31 are arranged at intervals, which can prevent the lead wires 21 of the coil 2 from being entangled with each other, and facilitate the distribution of the lead wires 21 of the coil 2.

[0063] The first end 13 of the terminal 1 is connected to the carrier platform 3, and the second end 14 of the terminal 1 protrudes from the carrier platform 3. The first end 13 of the terminal 1 can be embedded in or installed in the carrier platform 3. In this embodiment, the first end 13 of the terminal 1 is embedded in the carrier platform 3, that is, part of the terminal 1 is buried in the carrier platform 3, so that the bonding force between the terminal 1 and the carrier platform 3 can be improved, and the terminal 1 can be prevented from falling off.

[0064] The clamping member 4 can be disposed at the first end 13 of the terminal 1, that is, the clamping member 4 can be disposed at the first end 13 of the main body 11, and the clamping member 4 integrally extends from one side of the corresponding main body 11 and protrudes from the support platform 3. The clamping member 4 can also be disposed on the support platform 3, and the clamping member 4 and the terminal 1 can be separated. One end of the clamping member 4 is preferably embedded in the support platform 3 to improve the stability of the position of the clamping member 4.

[0065] The number of the clamping parts 4 can be one or more, and the material of the clamping parts 4 is preferably metal. When the carrier 3 is inserted into the shell 5, the clamping parts 4 and the shell 5 are clamped and matched to limit the movement of the carrier 3 in the insertion direction. The shell 5 is usually made of plastic. By using the clamping parts 4 made of metal, compared with the plastic-to-plastic fixed matching structure between the carrier 3 and the shell 5, the holding force between the clamping parts 4 made of metal and the shell 5 made of plastic is greater, so that the fixation between the clamping parts 4 and the shell 5 is more stable, thereby improving the fixing effect between the clamping parts 4 and the shell 5, preventing the carrier 3 and the shell 5 from separating during transportation or assembly, and reducing or avoiding the shaking between the carrier 3 and the shell 5, thereby reducing the wear between the carrier 3 and the shell 5, and thus improving the service life of the carrier 3 and the shell 5.

[0066] Reference Figure 1 , Figure 3The solenoid valve coil assembly 100 may further include a coil carrier 6 and an outer cover 7. The coil 2 is disposed on the outer peripheral surface of the coil carrier 6. The coil carrier 6 supports the coil 2 to prevent the coil 2 from being deformed. The outer cover 7 is disposed on the periphery of the coil 2 and the coil carrier 6. The outer cover 7 can protect the coil 2, isolate the coil 2 from the outside, and prevent the coil 2 from being damaged by external forces. One end of the carrier 3 is disposed on the coil carrier 6, and the other end of the carrier 3 protrudes from the outer cover 7, so that part of the carrier 3 can be mutually clamped with the housing 5 to prevent the carrier 3 from falling off the housing 5 during transportation or assembly. In some embodiments, the carrier 3 and the coil carrier 6 may be integrally formed.

[0067] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A terminal for a solenoid valve coil assembly, used to connect to a lead wire of a coil, characterized in that: include: A main body and a wire clamping part arranged on the main body, wherein the wire clamping part has convex ribs and grooves arranged opposite to each other, and the convex ribs and the grooves surround and form a wire clamping groove for clamping the lead wire.

2. The terminal for the solenoid valve coil assembly according to claim 1, characterized in that: The wire clamping part includes a fixing piece and a crimping piece, wherein the fixing piece is arranged on the main body part or extends from the main body part, and the crimping piece is bent and extended from the fixing piece in an integral manner; The convex rib is arranged on the fixing sheet, and the groove is arranged on the crimping sheet; or, The convex rib is arranged on the crimping sheet, and the groove is arranged on the fixing sheet.

3. The terminal for the solenoid valve coil assembly according to claim 2, characterized in that: The wire clamping portion also includes a bending section, two ends of which are respectively connected to the fixing plate and the crimping plate, the groove extends to the bending section or is arranged close to the bending section, and the convex rib correspondingly extends to the bending section or is arranged close to the bending section, so that the convex rib and the groove are arranged to form the wire clamping groove for clamping the lead wire.

4. The terminal for the solenoid valve coil assembly according to claim 2, characterized in that: When the groove is provided on the crimping piece, in the insertion direction of the main body into a conductive through hole, the crimping piece has a first side and a second side opposite to each other, and the groove passes through the first side of the crimping piece and the second side of the crimping piece; or When the groove is provided on the fixing plate, in the insertion direction of the main body into a conductive through hole, the fixing plate has a third side and a fourth side opposite to each other, and the groove passes through the third side and the fourth side of the fixing plate.

5. The terminal for the solenoid valve coil assembly according to claim 1, characterized in that: In a direction perpendicular to the insertion direction of the main body into a conductive through hole, the width of the groove is greater than or equal to the diameter of the lead; and / or, The depth of the groove is less than or equal to the diameter of the lead wire.

6. The terminal for the solenoid valve coil assembly according to claim 2, characterized in that: After the lead wire is clamped in the wire clamping groove, the convex rib at least abuts against the outer edge of the groove, or the convex rib abuts against the surface of the fixing plate or the crimping plate where the groove is located.

7. The terminal for the solenoid valve coil assembly according to claim 1, characterized in that: In a direction perpendicular to the insertion direction of the main body into a conductive through hole, the maximum width of the rib is greater than the maximum width of the groove, so that the rib is away from the bottom of the groove at one end thereof toward the groove; and / or, In a direction perpendicular to the insertion direction of the main body into a conductive through hole, the width of the convex rib gradually decreases from an end away from the groove to an end close to the groove.

8. The terminal for the solenoid valve coil assembly according to claim 1, characterized in that: At least a first chamfer is provided at an outer edge of one end of the rib facing the groove; and / or, At least a second chamfer is provided at an outer edge of the groove on a side facing the rib.

9. The terminal for the solenoid valve coil assembly according to claim 2, characterized in that: When the convex rib is provided on the fixing plate, the thickness of the fixing plate corresponding to the convex rib is the same as the thickness of the other positions of the fixing plate; or, When the convex rib is provided on the crimping piece, the thickness of the crimping piece corresponding to the convex rib is the same as the thickness of the remaining positions of the crimping piece.

10. A solenoid valve coil assembly, characterized in that: It comprises a terminal and a coil for an electromagnetic valve coil assembly as described in any one of claims 1 to 9, wherein the lead wire of the coil is clamped in the wire clamping groove, and the lead wire is fixedly connected to the wire clamping portion by welding.

11. The solenoid valve coil assembly according to claim 10, characterized in that: Before the lead wire passes through the wire clamping portion, part of the lead wire is wound around the main body; and / or, After the lead wire passes through the wire clamping portion, part of the lead wire is wound around the main body.

12. The solenoid valve coil assembly according to claim 10, characterized in that: The lead wire is an enameled wire, and the lead wire comprises an inner conductor and an insulating layer covering the outer periphery of the conductor.

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